Circular comb comprising a guide element

Abstract

A circular comb for a comber includes a basic body fastened on a shaft in a rotationally locked manner. A comb clothing is supported on an outer circumference of the basic body and includes clothing tips that define an outer enclosing circle. A guide element following the basic body viewed in a combing direction of the comb clothing includes a first guide surface that adjoins the basic body, is arranged within the enclosing circle, and has a radial clearance from the enclosing circle. The guide element includes a second guide surface that adjoins and forms an obtuse angle with the first guide surface. A length of the second guide surface is at least twice as great as a length of the first guide surface, as viewed in a circumferential direction of the circular comb.

Description

FIELD OF THE INVENTION[0001]The invention relates to a circular comb for a comber having a basic body, which is fastened on a circular comb shaft in a rotationally locked manner and supports, on the outer circumference thereof, at least one comb clothing, the clothing tips of which form an outer enclosing circle. A guide element fastened on the circular comb is provided following—as viewed in the combing direction of the comb clothing—the basic body supporting the comb clothing. The guide element has at least two mutually adjacent guide surfaces, wherein the first guide surface, which adjoins the basic body, is arranged within the enclosing circle and with substantially consistent radial clearance from the enclosing circle, and the adjoining second guide surface forms an obtuse angle with the first guide surface.BACKGROUND[0002]Document CH-654 599 makes known an embodiment of a circular comb for a comber, wherein a part 27 (called a guide element) is installed following a comb cloth...

AI Technical Summary

Benefits of technology

The patent describes a design for a guide element in a textile machine that helps to control the airflows and prevents fiber deposits. The guide element is designed with a low specific weight to minimize loads on the comb and has surfaces that prevent fibers from adhering to it. This design also allows for a gentle insertion of fiber tufts into the comb segment, reducing fiber damage. The guide element is integrally connected to the basic body, eliminating transition edges and simplifying production. Overall, the design improves the efficiency and quality of textile machines.

Problems solved by technology

Such a lifting of the end of the fibrous web before the joining of the extracted fiber tuft protruding from the nipper disrupts the downstream joining process (piecing process) and results in unclean and faulty splices (piecings).

That is, at high nip rates, unwanted airflows have an even greater effect on the piecing process.

In addition, it is becoming increasingly difficult to hold the fed-back end of the fibrous web on the periphery of the lower detaching roller before the end of the extracted fiber tuft protruding from the nipper is placed onto the end of the fibrous web.

Images